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Service Support

Service and repair of

this product is

supported by

Panasonic's LUCI

interface.

This interface provides a

link between the TV and

a standard PC to allow a

number of diagnostic

and control functions to

be performed.

For more details contact

your local Panasonic

company.

BACK

EXIT

TX-28/25XD4F Service Manual

Safety

Specifications

Block Diagrams

Schematic Diagrams

Содержание TX-25XD4F

Страница 1: ...C to allow a number of diagnostic and control functions to be performed For more details contact your local Panasonic company BACK EXIT TX 28 25XD4F Service Manual A Safety Specifications Block Diagrams Schematic Diagrams PCB Views Self Check Service Information Parts List Service Hints Disassembly Location of Controls Waveforms Mechanical View Adjustments ...

Страница 2: ...BACK BACK BACK E Schematic N Schematic H Schematic Y Schematic E PCB Y PCB Audio Power supply Control Video ...

Страница 3: ...TE This Service Manual should be used in conjunction with the EURO4 technical guide CARACTÉRISTIQUES Les informations entre parenthèses concernent le TX 25XD4F Alimentation 220 240V AC 50Hz Consommation 90W Impédance d antenne 75Ω asymétrique sur prise coaxiale Standby Consommation 1 8W Systéme de réception PAL I B G H D K PAL 525 60 SECAM L L B G D K M NTSC NTSC Entrée AV seulement Canaux de réce...

Страница 4: ... aerials connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be between 4M ohm and 20M ohm When the exposed metal does not have a return path to the chassis the reading must be infinite PRECAUTIONS DE SECURITE CONSEILS GENERAUX 1 Avant d effectuer toute révision d un châssis sous tension il est recommandé d installer un transformateur d ...

Страница 5: ...on pour cette vérification 2 Raccorder une résistance de 2kΩ 10W en série avec une partie métallique exposée du récepteur et une terre comme une conduite d eau 3 Utiliser un voltmètre CA de type à impédance élevée pour mesurer le potentiel à travers la résistance 4 Vérifier toutes les parties métalliques exposées et mesurer la tension à chaque point 5 Retourner la fiche CA dans la prise secteur et...

Страница 6: ...he 15 screws A as shown in Fig 2 SUGGESTIONS DE DEPANNAGE COMMENT RETIRER LE PENNEAU ARRIÈRE 1 Retirer les 15 vis A comme sur la Fig 2 LOCATION OF CONTROLS EMPLACEMENT DES COMMANDES Screws A Vis A Fig 2 Fig 3 4 N Board E Board Y Board Focus Screen H Board ...

Страница 7: ...ode as explained above The screen will show 3 Press the BLUE button on the remote control The screen will show 4 Press the STR button on the remote control The screen will show 5 All the tuning information stored inside the TV will now be transferred to the Memory Pack This process will take 2 3 minutes to complete and when finished the screen will show Memory Pack to TV process 1 Plug the memory ...

Страница 8: ...es par le téléviseur seront maintenant transférées vers le bloc memoire Cette opération ne prend que 2 à 3 minutes Lorsqu elle est terminée l écran du téléviseur présentera le message suivant Processus de transfert bloc mémoire vers téléviseur 1 La partie arrière du téléviseur comporte deux connecteurs à 21 broches brancher le bloc mémoire dans le connecteur supérieur AV1 puis mettre le téléviseur...

Страница 9: ...echnically Advanced System for Multimedia Interactive Notes C est le premier pas vers un training plus interactif ce produit permet aussi bien un acces rapide aux informations techniques VDP O K TUN O K E2 O K MSP O K DPL PCB O K Cab O K Sum Factory use only Usage d usine seulement OPTION 1 39 OPTION 2 0C OPTION 3 1F OPTION 4 00 OPTION 5 EF OPTION 6 25 Service Aids To aid in the service of our cur...

Страница 10: ...and adjust the screen VR until the display shows O K REGLAGES Préparation Réglages B Réglages 1 Appliquer une mire à carreaux N B 2 Régler les contrôles suivants Lumière Minimum Contraste Minimum Volume Minimum 1 Régler les tensions B comme suit Régler R811 tel que la tension B2 soit de 148V 1V Confirmer le réglage B9 5 0 25V B10 5 0 25V B5 12 0 5V B11 33 1 5V B4 16 1V B7 8 0 5V B12 26 1V B8 5 5 0...

Страница 11: ... IC601 Pin 39 275mV 64µS 64µS 3V H Out IC601 Pin 50 Vert Out IC601 Pin 31 20mS 0 7V 13µS 3 7V SCL IC1201 Pin 3 R Out E8 Pin 5 64µS 4 6V HFLB IC601 Pin 13 64µS 6 2V R Out IC601 Pin 37 64µS 275mV G Out IC601 Pin 38 275mV 64µS Vert Drive IC451 Pin 2 20mS 57V HFLB IC701 Pin 8 64µS 1 5V G Out E8 Pin 3 64µS 4 4V SVM Out IC601 Pin 34 88mV 64µS H Out IC701 Pin 5 30mV 64µS ...

Страница 12: ...l Linearity V Lin 006 Optimum setting Vertical Symmetry V Sym 002 Optimum setting DVCO DVCO 005 Receive a PAL Colour Bar Pattern For DVCO alignment press Blue button wait until the colours are changing slowly and press STR Cut off DC Cut off 0171 Ug2 Test Ug2 055 O K To adjust Cutoff connect an oscilloscope to the blue cathode adjust cutoff value using the Yellow and Blue buttons until the black l...

Страница 13: ...lages Vertical Symmetry V Sym 002 Optimiser les réglages DVCO DVCO 005 Mettre une mire de barre couleur en PAL Pour régler DVCO appuyer sur la touche Bleu et attendre que les couleurs défilent le plus lentement possible et appuyer sur STR Cut off DC Cut off 0171 Ug2 Test Ug2 055 O K Pour régler le cutoff mettre un oscilloscope sur la cathode Bleu et régler avec les touches Jaune et Bleu jusqu a ce...

Страница 14: ... IN 47 B OUT 39 Q305 Q303 Q301 E8 4 3 5 Q353 Q352 Q351 CRT 3 2 1 7 8 9 Y2 4 3 5 IC351 TUNER Q104 5HG OXH UHHQ 9LGHR Q 9 9LGHR 2XW G OUT 38 R OUT 37 G IN 46 R IN 45 Q306 Q304 Q302 Q354 7 7 VM COILS Q905 Q907 Q909 Q908 Q906 SVM OUT 34 Q950 Q951 Q3001 G 38 B 39 Y BOARD E BOARD RGB OUTPUT VIDEO PROCESSOR MICRO PROCESSOR H3 E61 E15 1 6 8 H1 1 6 8 H BOARD 12 IC3401 Q3402 8 6 3 VIDEO SWITCHING ...

Страница 15: ...1 R OUT 3 L OUT 1 R OUT 3 L OUT 2 R IN 6 L IN 2 R IN 6 L IN 47 ANA_IN1 44 MONO IN DACM_L 25 SC3_IN_R 38 SC1_IN_R 42 SC1_IN_L 41 SC2_OUT_R 27 SC2_OUT_L 28 SC2_IN_R 40 SC2_IN_L 39 Q252 Q251 2 L L 11 4 L HEADPHONE 7 R 5 L E6 1 E7 3 Q2304 Q2302 21 DACA_R 22 DACA_L E BOARD AUDIO PROCESSOR AUDIO OUTPUT AUDIO MONITOR OUT Q2303 Q2301 Q103 49 ANA_IN2 X101 X102 13 ...

Страница 16: ... KEYS SWITCH MATRIX 60 Q854 52 Q853 74 IC1071 81 AV2 8 10 AV1 8 10 12 Q856 75 Q851 Q1106 Q1105 Q1107 Q1104 51 72 73 AV LINK SLOW 2 SLOW 1 SCL 1 SDA 1 59 58 Q3006 Q3007 55 VPROT KEYSCAN ON OFF R C L E D PROT 1 SLOW 2 OUT IN SLOW 1 SERVICE SCL SDA H BOARD E BOARD VIDEO SWITCHING AUDIO PROCESSOR MICRO PROCESSOR VIDEO PROCESSOR EAROM REMOTE CONTROL RECEIVER Q1051 N BOARD 8 8 D1071 14 L L L L POS NEG 8...

Страница 17: ... 3 1 S4 B1 P2 P1 S5 S2 S7 10 9 6 8 5 6 2 6 3 1 6 12V 200V 33V 14V 14V 27V 150V 29V 7V 15V 5V D867 Q852 Q854 Q855 1 D805 R805 R814 IC850 1 2 D862 R854 33V 16 REMOTE CONTROL RECEIVER N BOARD RESET MICRO PROCESSOR AUDIO PROCESSOR VIDEO PROCESSOR EPROM EAROM RESET REG REG REG IC3401 7 VIDEO SWITCHING EW CORRECTION POWER SUPPLY RGB OUTPUT V OUTPUT AUDIO OUTPUT D801 E BOARD Y BOARD E3 2 Y3 2 N1 2 E19 2 ...

Страница 18: ... on the exploded view below refer to the mechanical section of the Replacement Parts List 10 3 19 12 6 8 2 17 9 1 7 22 16 23 4 18 20 5 14 13 11 15 24 21 REMARQUE Les numéros sur les pièces mécaniques indiquent les No de réf de la liste des pieces de rechange ...

Страница 19: ... GERMAN TQB8E2562A DUTCH FRENCH TQB8E2562BD ITALIAN SPANISH TQB8E2562CE SWEDISH NORWEGIAN TQB8E2562FG SUOMI DANISH TQB8E2562HK I C s AUDIO OUTPUT IC251 LA4282 R G B AMPLIFIER IC351 TDA6103Q N3 VERTICAL OUTPUT IC451 LA7845N VIDEO PROCESSOR IC601 VDP3108BPPB1 HORIZONTAL OUTPUT IC701 TEA2031A POWER SUPPLY IC801 STRF6654LF51 ERROR AMPLIFER IC850 SE140N 12V REGULATOR IC851 L78M12MRB 5V REGULATOR IC852 ...

Страница 20: ...B TRANSISTOR Q304 FMY4T148 TRANSISTOR Q305 BC847B TRANSISTOR Q306 FMY4T148 TRANSISTOR Q351 2SA1767 TRANSISTOR Q352 2SA1767 TRANSISTOR Q353 2SA1767 TRANSISTOR Q354 BC857B TRANSISTOR Q451 BC857B TRANSISTOR Q503 2SD2398 M2 TRANSISTOR Q551 BU2508AXLB TRANSISTOR Q552 2SC1473 RN TRANSISTOR Q701 BC857B TRANSISTOR Q850 2SD1273PLB TRANSISTOR Q851 BC857B TRANSISTOR Q852 2SC1383 S TRANSISTOR Q853 BC847B TRAN...

Страница 21: ... 0 S M CARB JSE4 ERJ6GEY0R00 0 1W 5 0 S M CARB JA27 ERJ6GEY0R00 0 1W 5 0 S M CARB JSE5 ERJ6GEY0R00 0 1W 5 0 S M CARB JSE3 ERJ6GEY0R00 0 1W 5 0 S M CARB JA13 ERJ6GEY0R00 0 1W 5 0 S M CARB JA2 ERJ6GEY0R00 0 1W 5 0 S M CARB JA16 ERJ6GEY0R00 0 1W 5 0 S M CARB JA12 ERJ6GEY0R00 0 1W 5 0 S M CARB JSN1 ERJ6GEY0R00 0 1W 5 0 S M CARB JA22 ERJ6GEY0R00 0 1W 5 0 S M CARB JA15 ERJ6GEY0R00 0 1W 5 0 S M CARB JA14...

Страница 22: ... 1R2 CARBON R463 ERD25TJ222 0 25W 5 2K2 S M CARB R464 ERJ6GEYJ182 0 1W 5 1K8 S M CARB R465 ERJ6GEYJ681 0 1W 5 680 S M CARB R502 ERJ6GEYJ511 0 1W 5 510 CARBON R506 ERD25TJ560 0 25W 5 56 METAL R507 ERG1FJ271P 1W 5 270 CARBON R509 ERDS1TJ152 0 5W 5 1K5 CARBON R510 ERDS1FJ152 0 5W 5 1K5 METAL R553 ERG1SJ152 1W 5 1K5 METAL R554 ERG1SJ101 1W 5 100 METAL R555 ERQ12HKR33 0 5W 5 R33 CARBON R558 ERDS1TJ124 ...

Страница 23: ...110 ERJ6GEYJ472 0 1W 5 4K7 S M CARB R1111 ERJ6GEYJ473 0 1W 5 47K S M CARB R1112 ERJ6GEYJ473 0 1W 5 47K S M CARB R1113 ERJ6GEYJ101 0 1W 5 100 S M CARB R1115 ERJ6GEYJ471 0 1W 5 470 S M CARB R1116 ERJ6GEYJ101 0 1W 5 100 S M CARB R1117 ERJ6GEYJ101 0 1W 5 100 S M CARB R1118 ERJ6GEYJ472 0 1W 5 4K7 S M CARB R1119 ERJ6GEYJ472 0 1W 5 4K7 S M CARB R1120 ERJ6GEYJ101 0 1W 5 100 S M CARB R1121 ERJ6GEYJ101 0 1W...

Страница 24: ...101 0 1W 5 100 S M CARB R3107 ERJ6GEYJ153 0 1W 5 15K S M CARB R3108 ERJ6GEYJ153 0 1W 5 15K S M CARB R3402 ERJ6GEYJ750 0 1W 5 75 S M CARB R3403 ERJ6GEYJ101 0 1W 5 100 S M CARB R3404 ERJ6GEYJ242 0 1W 5 2K4 S M CARB R3405 ERJ6GEYJ104 0 1W 5 100K S M CARB R3406 ERJ6GEYJ301 0 1W 5 300 S M CARB R3407 ERJ6GEYJ123 0 1W 5 12K S M CARB R3408 ERJ6GEYJ472 0 1W 5 4K7 S M CARB R3409 ERJ6GEYJ750 0 1W 5 75 S M CA...

Страница 25: ...1H104KBX 50V 10µF S M CAP C630 ECUV1H100DCX 50V 10pF S M CAP C631 ECUV1H683ZFX 50V 68nF S M CAP C632 ECUV1H270JCX 50V 27pF S M CAP C633 ECUV1H271JCX 50V 270pF S M CAP C634 ECUV1H271JCX 50V 270pF S M CAP C635 ECUV1H180JCX 50V 18pF S M CAP C636 ECUV1H271JCX 50V 270pF S M CAP C637 ECUV1H101JCX 50V 100pF S M CAP C638 ECUV1H471JCX 50V 470pF S M CAP C639 ECUV1H332KBM 50V 470pF ELECT C701 ECA1HHG101B 50V...

Страница 26: ... 50V 470pF S M CAP C2139 ECUV1H221JCX 50V 220pF ELECT C2140 ECA1HM101GB 50V 100µF S M CAP C2141 ECUV1H152JCX 50V 1 5pF S M CAP C2301 ECUV1H222JCX 50V 2 2nF ELECT C2302 ECA1CM470GB 16V 47µF S M CAP C2303 ECUV1H222JCX 50V 2 2nF ELECT C2304 ECA1CM470GB 16V 47µF S M CAP C3001 ECUV1H222JCX 50V 2 2nF S M CAP C3002 ECUV1H222JCX 50V 2 2nF ELECT C3003 ECA1CM470GB 16V 47µF S M CAP C3005 ECUV1H561JCX 50V 560...

Страница 27: ...TPD8E631 BOTTOM CUSHION TPD8E632 I C s EAROM IC1103 XGL2 02GF CAPACITORS CERAMIC C551 ECKC3D152J 2KV 1 5nF DIFFERENCES FOR MODEL TX 28XD4F MECHANICAL PARTS BACK COVER 12 TKU8E00320 C R T 13 A66ECF50X41 CABINET 14 TKY8E160 DEGAUSS COIL 15 TLK8E05140 DOOR LID 16 TKP8E1170 E P C B 17 TNP8EE009BF LEFT PANEL 18 TKP8E1175 MODEL LABEL 19 TQF8E2674 POWER BUTTON 20 TBX8E040 POWER CORD 21 TSX8E0027 RIGHT PA...

Страница 28: ...H THE DARK WALNUT FINISH PLEASE REFER TO THE TX 28XD4F A AND TX 25XD4F A DIFFERENCE LISTS NOTE POUR LES MODELES FINITION NOYER FONCE SE REFERER A LA LISTE DES PIECES DIFFERENTES POUR LES MODELES TX 28XD4F A ET TX 25XD4F A ...

Страница 29: ...st à jour moment de l impression et modifiable sans préavis REMARKS REMARQUE 1 The Power Supply Circuit contains a circuit area which uses a separate power supply to isolate the earth connection The circuit is defined by HOT and COLD indications in the schematic diagram All circuits except the Power Circuit are COLD Take the following precautions 1 Le circuit d alimentation contient une zone de qu...

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Страница 34: ...5 I9 IC1104 C9 Q855 J5 D864 I10 IC1103 F8 Q854 B4 D863 G9 IC1102 D10 Q853 B4 D862 N10 IC1101 D8 Q852 B5 D861 J9 IC1051 A10 Q850 F5 D860 I10 IC852 I10 Q701 J5 D859 H5 IC851 G5 Q552 N3 D858 E5 IC850 H4 Q551 K1 D857 E5 IC801 G2 Q503 I2 D855 F4 IC701 K5 Q451 F8 D854 G4 IC601 L7 Q394 K9 D853 H3 IC451 L5 Q305 K9 D852 I4 IC251 D6 Q303 K9 D851 I4 TP S Q302 J9 D850 H4 TPE14 M5 Q301 K9 D806 G2 TPE13 M4 Q253...

Страница 35: ...4 A7 Q353 G6 Q352 F6 Q351 F6 DIODES D906 F1 D905 G4 D904 D3 D902 G4 D901 G3 D364 C9 D363 C8 D362 B9 D361 B7 D360 D8 D359 G6 D358 E7 D357 F7 D356 G7 D355 F7 D354 G7 TEST POINTS TPY6 B8 TPY5 D5 TPY4 E5 TPY3 F6 TPY2 E7 TPY1 G6 IC S IC351 E8 30 H G F E D C B A 1 2 3 4 5 6 7 8 9 ...

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